package test2;

import java.util.Scanner;

public class MyDate {
    public static void main(String[] args) {
        MyDate m=new MyDate();
        m.totalDays();
    }

    public void totalDays(){
        Scanner sc=new Scanner(System.in);
        System.out.println("请输入年份");
        int year=sc.nextInt();
        System.out.println("请输入月份");
        int month=sc.nextInt();

        switch (month){
            case 1:
            case 3:
            case 5:
            case 7:
            case 8:
            case 10:
            case 12:
                System.out.println("这个月一共31天");break;
            case 4:
            case 6:
            case 9:
            case 11:
                System.out.println("这个月一共30天");break;
            case 2:
                if (year%4==0&&year%100!=0||year%400==0){
                    System.out.println("这个月一共29天");
                }else{
                    System.out.println("这个月一共28天");
                }break;
        }
    }
}
